RiverFish

3-spined stickleback · Gasterosteus aculeatus

3-spined stickleback in the River Bollin

Largest measured 3-spined stickleback: 7 cm

The largest 3-spined stickleback measured in Environment Agency surveys of the River Bollin was 7 cm, recorded at Bobo15 on 20 August 2003.

Across 112 measured 3-spined stickleback, the median measured length was 3.5 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Bollin.

See 3-spined stickleback records across England →

Most recent observation9 September 2025Bobo07
Largest measured 3-spined stickleback
7 cm
Median length
3.5 cm
Fish measured
112
Survey locations
36

Individual EA measurements

Largest measured 3-spined stickleback

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
7 cm20 Aug 2003Bobo1576731
6.7 cm18 Aug 2003Bobo2576693
5.9 cm26 Jul 2002Bobo1664560
5.7 cm18 Aug 2003Bobo2576693
5.5 cm20 Aug 2003Bobo1576731
5.5 cm9 Oct 2002Bobo2564061
5.5 cm9 Oct 2002Bobo2564061
5.1 cm21 Aug 2003Bo0776733
5.1 cm9 Oct 2002Bobo2064041
4.7 cm19 Aug 2003Bobo2076734

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where 3-spined stickleback were found

Each point marks a survey location with at least one 3-spined stickleback record.

Choose a point on the map to see what was recorded there.

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyedFirst recordedLast recordedVisits finding 3-spined stickleback
Bobo079 Sept 20259 Sept 20251
Bobo059 Sept 20259 Sept 20251
Bobo209 Oct 200223 Jul 20256
Bobo1929 Aug 200723 Jul 20252
Bobo1218 Aug 201122 Jul 20252
Bobo1022 Aug 200117 Jul 20256
Bo1123 Jul 199620 Sept 20222
Bo082 Jul 19967 Sept 20222
Bobo3117 Aug 20115 Sept 20223
Bo026 May 200321 Jul 20168
Bobo1414 Oct 201014 Oct 20101
Bo0112 Jun 199629 Apr 201014
Bobo3018 Aug 200323 Jun 20083
Bo032 Jul 199630 May 20077
Bobo259 Oct 20027 Aug 20065
Mc0530 Jul 200227 Sept 20052
Mc0326 Jul 200227 Sept 20052
Bobo1612 Jul 19994 Aug 20054
Bo0718 Aug 199321 Aug 20033
Bobo1526 Jul 200220 Aug 20032
Bo1226 Aug 199320 Aug 20033
Mc0030 Jul 200230 Jul 20021
Mc0112 Jul 199926 Jul 20022
Bo0615 Aug 199615 Aug 19961
Bo096 Aug 19966 Aug 19961
Bo0518 Aug 19936 Aug 19962
Bo0417 Aug 19936 Aug 19962
Bo1023 Jul 199623 Jul 19961
Bo2426 Jun 199626 Jun 19961
Bo2326 Jun 199626 Jun 19961
Bo202 Nov 199326 Jun 19962
Bo1825 Jun 199625 Jun 19961
Bo1725 Jun 199625 Jun 19961
Bo192 Nov 19932 Nov 19931
Bo1626 Oct 199326 Oct 19931
Bo1426 Aug 199326 Aug 19931

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

1993–2025

Survey records by year

Each bar shows how many survey visits recorded 3-spined stickleback that year.

Fish measured by surveyors

Measured length distribution

See how the 112 measured fish were spread across different length ranges.

Smallest
1.3 cm
Lower quarter
3.1 cm
Median
3.6 cm
Upper quarter
3.8 cm
Largest
7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Bollin

Compare other species with enough survey and measurement data for a detailed page.

Stone loach Bullhead Gudgeon Brown / sea trout Chub Roach

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →